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E`.`\c. sci-INKE CALCULATING MACHINE Oct. 11,1927.

Filed March 31. 1923 6 Sheets-Sheet l Oct u 1927 E. c. scHlNKECALCULATING MACHINE Filed March 31. 1923 6 Sheets-Sheet 2 A Trop/15V;

Oct. 11, 1927.

E. C. SCHINKE cALcULn-ING MAGHINE Filed March 31- 1923 6 Sheets-Sheet 3myn/T01? E. 6. 50m/rf Y @mw/mm;

A fr0/Mfrs Oct. 11, 1927.

E. c. scHlNKE 1,644,897

CALCULTING MACHINE Filed March 31- 1923 6 Sheets-Sheet 4 zov W92 I EYMW? Arrow/5v5 1,644 897 Oct. l1, 1927. E C SCHINKE CALCULATI NG MACHI NEFiled March 151. 1923 6 Sheets-Sheet 5 B www@ A rra/m5 Y:

6 Sheets-Sheet 6 /nvE/vro@ 6.5cH//1KE Maw/ M67 BY ArafP/YEYS E. C.SCHINKE CALCULATING MACHINE Flled March 3l 1923 Oct. 11, 1927.

Patented Oct. 1l, i927.

UNITED STATES PATENT OFFICE.

EDV/'ARD C. SCHINKE, OF WEBSTER GROVE-S. MISSOURI. ASSIGNOR TO THEACCOUNTO- GRAPH COMPANY, 0F ST. LOUS. IVIISSOURI.

A CORPORATION OF MISSOURI.

CALCULATING IMAOHINE.

Application filed March 31, 13:23.

This invention relates to improvements in calculating;r machines, and toillustrate certain features of the invention l have shown calculatingimechanism adapted to he actuated by the numeral keys and platen carriageof an ordinary typewriter. One ot the objects of the invention is toprovide an improved means for actuating and controlling,r a plurality ofaccumulators, or totalizers.

The machine herein shown and described is provided with a pluralityofaccumulators and each accumulator can be -selected and .operated byitself, or two or more accumu lators can be selected and operated at thesame time. The selection vof the accumulators is preferably under thecontrol of individual selectors that'can be readily positioned for themost desirable Aselection of the accumulators, and the selection willdepend upon the particular kind of Work to be performed by the machine.After being properly'positioned, the selectors automatically select theaccumulators at the times they are to be operated, and the machinepreferably includes1 manually operated keys whereby any one or all ofthe selectors may be rendered ineffective. f

The machine about to bevdescribed also includes key-controlledldevices,A :through which motion is transmitted foriaddition andsubtraction, and automatic means determining' whether the operation isto be addition oi subtraction. This automatic means is preferablyassociated with' the selectors for the accumulators, soI as topredetermine whether addition or subtraction is. to be performed in theselected accumulator.

Each accumulator isprovided-with an actuator and a travelingdenominational carriage, movable step by step to change thedenominational relation of the actuator to the accumulator, therebyproviding for the transmission of movement to a series of total wheelsof different orders. The actuator just referred to ma)v be a. rotarymaster Wheel, and it may be carried by thc denomi national carriage so:is to advance one step in response to cach operation of the numerallicys. In the structure I have shown, the denominational carriage isdriven by the travcliig,r platen carriage of an ordinary typewriter.

Briefly stated. the preferred form of the invention comprises aplurality of accumula tors each provided with an actuator in the form ofa .master Wheel, and a denominational carriage movable step by step tosi'- n'iiiltancoiisly change the denominational re'- latioii ot' themaster wheels to the respective accumulators. lVhen all of theaccumulatoisare to be actuated, the denominational carriage locates themaster Wheels in their operative positions relative to theacc'umulators1and when only one accumulatoris to be actuated, the denominational'carriage-is shifted to locate one of the master Wheels in successiveoperative positionsrelative' to its accumulator, While the other master`Wheels are located in successiveidle positions relative to theiraccumulators.4 In eitherf'case the denominational carriagesimultaneoiisly locates all of the master-'wheels indifferent positionsrelative to the accumulators, so' it is not necessary to. employmorethan'one denominational carriage and it .is not necessary to providemechanismfor causingonc denominational carriage to travel independentlyof another. This maybe accomplishedby causing-one o'f the master wheelsto'soccupyidlepo'sitions between vdenominational Wheelsgof itsaccumulator, while I' 'another 'master wheel occupies active positionsin meshv with the Wheels of its accumulator. By means-ofen extremelysimple selecting device, all of the master wheels can bei located-intheir operative positions to simultaneouslyfactuate-the accumulators. Asan' illustration of this feature of the invention,"I have shown thinymaster wheels adaptedfto idlyrotate Ibetween adjacent denominationalwheels of the accumulators, and also adaptedto mesh with thedenominational Wheels ofthe accumulators. The means for actuatingthetraveling denominational carriage is .provided with travelingrselectors wherebyeach accumulator can be selected and shifted from anidle position to an active position wherein its denominational vWheelsare adapted to mesh with one of the mastei' wheels.

l/Vith the foregoing and other objects in view, the invention comprisesthe novel construction, combination and arrangement of parts hereinaftermorel apeiiihcally detions "1 scribed and illustrated in theaccompanyimY drawings wherein is shown the preferred embodiment ot thepinvention. ,Hpween it is to be understood that theinyention comprehendschanges, variations and modifications` which `come within the scope ofthe Claire? bereue@ appended.

Figlf Vis* a side elevation, partly in section, showing a typewritingmachine provided with calculating. mechanism embodying the features ofinvention,

ig. II is a detail view of means .erzrshiftne a. rerersin geen. 5;

;tioefahewiwtthetelementsf at .thefltear of Eig. @bottom Yewqf partsiathe trQn'tof the mahne, shoivingwseme ef the elements. ofthe..accumulator Selectingfmeans- Fig. X-is an enlarged side elevation,partmotion is transmitte faomnumexza ,keys to the'master-gwheel shaft.'f t' Fig. XI is a perspectivevieiv showing'g,r the housineof one' of theaccumulators andthe shifterfor moving the accumulator from an idleposition 'to; an active position.

Fig. XII is a'detail view of the shifter for the reversing gear onthcfmastcr wheel shaft. i n

Fig. K IHis a transveisejsection looking toward the front. ofltheinachi'nel andv showing the master wheel 'carriage whereby themaster wheels areshifted on their shaft..

Fig. XIV is a diagrammatical view of the tripahle devices whereby theplaten carriage is connected to t-he 'means for drix-'ingg the masterwheel carriage. "Fig, 1 V is a fragmentary view of a part o f'tlie meansfor disconnecting the calculatin'g mechanism from the typewriter keys. YifrfXVI'is' a diagrannnatical view of the traveirig' selectors andtlieshifters actuated thereby." A*

uBwrietly stated. the machine about to he described isv a calculatingattachment. for typewriters. and is'ada'p'ted 4for use with ordinarytypewriting machines now on the marketf The numbers to be added arewrittien by the typewriter and the total is inparts ofthe dicated by anaccumulator. or l.=\- a pluralit.' of accumulatore. Each of the:i:;'.::a|.i;rt=rf; herein shown comprises a series of leselamriationalwheels. or total wheels of (lf-.tl .if order, and motion is transmittedfrom master wheel to the total wheels. Eitlv-r the. master wheel or theaccumulator nur: travel step bj step in response to the los);operations, so as to change the denomina tional relation of the masterwheel to thc accumulator.. r[he master wheel is therefore. splined to arotary shaft and carried b v a .master wheel carriage, or denominationalcarriage, adapted to travel in unison with :the platen carriage of-tl1e.t \jpewriter. The master wheel is rotated through the. mediumofthe numeral keys' of the typewriter.

-a housingl slidably mounted on horizontal rods '2 at the -front of themachine. Each housing is provided with total indicatingr wheels 3,(Figs. I, IV and X) which may` be viewed through a sight openingr in the"top of the housing, and transmission wheels; 4 meshing with the tota!wheels 3 and adapt edit be. driven by a master wheel. 'l`luwheels 4 maybe terniezl denuniinaiiunui wheels for they actual-e the total wheels I.of different denominations. designati-.a the master wheel associatedwith tlnarrumlllator A, and B' designates the master wheel foraccumulator l. C is the mash-r wheel of accumulator C. wheel:= aresplined to a rotary shaft. and when in service they travel step hv sich.longitudinally of the .shaft so af; :u suma-: sively mesh with thedenominational n'herls 4 in the. accumula-tors. rThe master wheel Shaft-5 is rotated through the medium et' the numeral keys. as will heluweina'ter lz- Ascribed.

The master wheel carriage. or rlenfnnlnational carriage. comprises atraine provided with fingers 7. eacl. of said tinffersextending intoanannular groove in the huh of a master wheel. The traine (5 is providedwith rollers 8 engaging stationary horizontal tracks 9 parallel with themaster wheel shaft ."tll of the master 5. It is to be uuderstomll thatthe master wheel carriage including fname 6 and fingers T can he shiftedalong the' stationary tracks t) tn locate the master wheels` indifferent. positions relative to their aceumulators.

Fue/fing .'m 11m-Ste7- 'wheels'.

'lir change the flcuzmzinainnal relation of the master wlucls to the :i:nulzims each nl' the master wheels is movable step h v step along themaster wheel Shaft 5 and these movi-:ments are obtained h v transmittingpower from the platea carriage of the typewriter tr tlu: i12-listervrhLel i311 'lic :lzastfi' WlEL'l lurlizagc iS |)1'i='.'illi'l :il tirilnwi' ezljge willi :i toothed rzl-h lll (lge. l and .\ll ii)u|esl1iugwith :t .sector il Iixed to :i long oscillatornvslxz:fl. lit whichexten-'ls a{iprmrinmlrli' from the fronti. te: tiut zr-:xi 't tlu:machine. sector 2l (lf's. i and Vil) is rigidly secured to the rear endot' the long shaft '20, and :hirz sector il meshes wit-li teeth at thelower edge oi" the loner feeding lever :22, sai-l lever heiligdctacha'oiy secured to the typewriter by means of a pivot screw Edesignates the platen carriage of the Vtypewriter (Fig. I), saidcarriage being adapted Ito travel back and forth in a straighthorizontal line, and it n1 ay. be actufated linresponse to the keyoperations,is well lundelswod in this art, 4the carriage moving oneSteppin .response to e 'acl'1A key operation.,,:'l`he rene portion ofthe platen Acarriage is provided .with a. lonntoothed horizontal bar 24(Figst- I, V- and a ber of this kindjbein'g present intheczxrriagesofseveralfweilf known typewriters nowj on the market-. 1.1i-, K- and di?designate. pinfcarrying clips stmddling'the toothed barV 24 and adjusta'nlymounted thereon.. Each` of these clips. is provided with-.srpower transmission pin-25 adaptedto cooperate with Vcertain elementsatgthe upper endof the'long lever 22, for the purpose 0f ransmittincrmovement from the platen carriage t.o sai( longlever 2? The. fingersatthe. uppeirflend o f th c 'lever 22 cooperate in a peculiar manner withthe pins 25 as will he hereinafter described, hul. itshouid now beunderstood that, the long lever oscillates in response to move-- ment-sof the platen carriage, and that. motion is thus transmitted fromthelong lever IZ'to the sector '21 at the. rear of the machine, andthesate through the long driving shaft 20 (Figs, l and V) to tlielscctor1l which meshes with-the rack l() on the master wheel carriage. Motionis thus transmitted from the trai-elim?)r platen -carriage-to the masterwheel carriage.

fimbriae-'fling :.1/,=1:cn.ren fro-ni key! levers t0 ff'ir, rai/wymaster 'ts/zaal shaft.

'l'he key evez l2 i) forms part of thc typen-nung machine, and may beconchiue used with the calculating attachment. 7o

1ldrsignatc-z a. lacy lever extension :fl"ig. l) secured to the numeralkey lever 42 and provided with a pin 44 through which motion istransmitted to the calculating machine.

l'laeh numeral key lever is provided with an 7'6 extension 13.Vertically guided slide bars -l5 (Figsl and lV) are connected by meansof levers 46 to the key extensions 43, each ol'Asaid levi-1S 46 (Fig. l)being pivoted to the upper end of one of the vert-ical slide 80 hars 4?;and provided at its upperend with a hook adapted to receive the piu 44on one of the key extensions 43. These connectin;

levers t6 are used to transmit power from vthe numeral keys to theslidehars 45, and 85 each of said levers 46 can occupy the operativeposition shown by Fim-{,wherein the hook at the upper end fof 'thelexeriis engaged with :wherein their `disiigalgi'cd from pins L-, so. astoallow Ythe'-i1uine`ral. keyslto be operated without xov''uiein't tothe-calculating vi i for shiftingfthe leverstl 95 :47': desi mates I anddigit 2 being adapted tolrixie'saidshaftffl' 110 n. distance of twostepstegitlie'lky' being adapted to drivesid'shzift nine steps, all ofwhich isfwelt understood in this 'ai-t.l f

To accomplish this, each 'oft-he slide bars 45 representing the digits-1 tofhjnclusive, "5

may be provided with@ predeterminedphurnher of rack teeth 45f adapted tomesh with a toothed digit. wheel-4S. (Figs. I, IY and X), the digitAwheels beingrigidlysecured.

to the digit-wheel shaft-4 and the racks 2 heingformed on1 therespective slide hars. 'It will now be understood that thejniuneral keysrepresenting digits'l to 9 inclusive. are used to actuate slide-*bars 45whereby/.the

digit wheel shaft 47 ishactuated, and ;the 25 degree ofmovementixnparted to the digit wheel shaft will depend upon the value ofthe key from which motionis transmitted. In Fig. I a screw 27 is locatedbeneath a slide bar `l5 to limit its downward motion, no

pin jeton a. key extension; or said levers 4 6 can beshiftedtoldlelpositions 90 and each slide bar may be provided with an adjustable stopof this kind.

'l` he means for transmitting movement from the digit wheel shaft 47 tothe master wheel shaft 5 is shown most clearly in Figs. l. IV and X. Thedigit wheel shaft 47 osrillates in response to the movements of thevertical slide bars 45, but the master wheel shaft 5 is drivencontinually in only one direction during the adding operations. 49designates a ratchet wheel fixed to the digit wheel shaft 47, and 50designates a gear wheel looselyI mounted on said shaft. A pawl 5l, (Fig.X) engaging the ratchet wheel 49, is pivotally secured to the gear wheel50. The train of gearing through which motion is transmitted comprises alarge gear 52 (Figs. I, IV and X) meshing with the gear wheel 50, apinion 53 meshing with the large gear 52` and a shiftable gear 55adapted to mesh with the pinion 53. for subtraction, and also adaptedtomesh with the gear 52 for addition.'A This s hiftable gear 55 issplined to the master'wheel shaft 5. A pawl 56 (Fig. X) cooperates withthe large gear 52 to prevent :retrograde movement of the train ofgearing. This train of gearing, including the ratchet and pawl 49, 51,transmits rotary movement to the master wheel s haft 5 in response tothe oscillatory movements of the digit wheel shaft 47, and when themachine is in service, the master wheels travel along the shaft 5,advancing step by step from .one accumulator wheel to another, so as tosuccessively actuate'the different total wheels. For example, tointroduce the numeral 29 into an accumulator, the 2-key is depressedwhile the master wheel registers with an accumulator wheel 4 in the tensorder. The total wheel in the tens order is thus turned 2 steps, and themaster wheel is then driven by the platen carriage .so as to pass to theunits order. Thereupon` the 9-key is depressed, with the result ofactuating the total wheel in the units order, driving it nine steps.

S ub traction.

In subtracting one number from another, the master wheel shaft must berotated reversely to the direction -in which it is driven for addition.The relatively wide or thick reversing pinion 53 (Figs. IV and X) isthere fore permanently in mesh with the gear wheel 52 through whichmotion is transmittml from the digit wheel shaft to the. master wheelshaft, and the shiftable gear wheel 5:'. ou the master wheel shaft canmesh directly with the pinion 53 to subtract numerals from theaccumulator, and said gear wheel 55 can be located in the position shownin Fig. IV so as to mesh with the wheel 52.

The means for shifting the gear wheel 55 (rigs. X, XH and Xm) comprises.e level` 58 pivotally supported at 59 and extendin0r into an annulargroove in the hub of sai wheel 55. By operating the lever 58, the gear55 can be placed in mesh with -either the gear wheel 52 for addition orthe reversing pinion 53 for subtraction. This lever can be manuallyoperated, and it is operated automatically as will be hereafterdescribed.

lisco'n-necei-lig the 'numeral keys from. he calculating mechanism..

I have previously referred to connecting levers 46 (Fig. I) having hookswhereby the numeral keys are detachably connected to the calculatingmechanism. Each lever 46 has a depending leg 46 which extends between apair of long horizontal rods 64 (Figs. I and IV) secured to oscillatoryarms 65. These arms 65 are actuated to move the levers 46 to connect thecalculating mechanism to the typewriter, and also to disconnect thecalcu ating mechanism when the numeral keys are to be operatedindependently of the calculating mechanism. The arms 65 are fixed to anoscillatory shaft 66 (Figs. I and XV) provided withan operating arm G7.A spring 68 (Fig. I) tends to move the arms 65 toward the front of themachine, thereby tending to connect the upper ends of levers 46 to thenumeral key levers. Note that a' roll on the operating arm 67 (Figs. Iand XV) is adapted to be engaged by the topface of an arm-69 on the longshaft 20. If the shaft 2O is turned in vone direction, the arm 69 willmove upwardly to impart a forward movement to the-lower end of arm 67,thereby actuating the arms 65 and rods 64 to disconnect the calculatingmechanism from the numeral keys. If the shaft 2() is then turned in theopposite direction, it will lower the arm 69, and thereby permit thespring 68 (Fig. I) to connect the calculating mechanism to the keylevers as shown in the drawings. It will therefore be understood thatthe oscillatory shaft 20, which transmits movement from the platencarriage to the master wheel carriage, also serves as means forconnecting and disconnecting the key levers. )Vhcn the platen carriageof the typewriter reaches a predetermined field, it begins to transmitmovement to the long shaft 20 so as to actuatc the. master wheelcarriage. and when thf` platen carriage passes from said field itrcleases the shaft 20 and permits thc. latter to he restored by a spring70 (Figs. lV and XIII) at the master wheel carriage thereby causing thearm 69 to engage and actuate the operating arm 67 so as to disconnectthe calculating mechanism from the key levers. The restoring spring 70is connected to the master wheel carriage, and said carriage is providedwith a rack bar l0 meshing with sector ll on the shaft 20.

Connecting the platen carriage to the means for feeding the master wheelcarriage.

When the platen carriage of the typewriter reaches a predeterminedposition, it begins to transmit movement to the means for feeding themaster wheel carriage, and after the master Wheels pass entirely acrosstheir accumulators, the feeding means is disengaged from the platencarriage, permit tingr the latter to continue in motion Without advancinthel master Wheel. I have already brie y described the means fortransmitting movement from the traveling platen carriage to thetraveling master wheel carriage, and Vattention is -now directed to themeans whereby the platen carriage is connected to and disconnectedfrom-the long feedinglever 22 at the'rear of the typewritingmachine. A'vf This feeding lever (Figs. I-and V') is in the form of a. sectormeshin Withthe sector 21 at the rear ofthe long s aft 2O through whichmovement is transmit-ted to the master wheel carriage'atthe front 'of-the machine. The powertransmission pins 25 secu red to the adjustableclips at 'therearvport-ion'oftheplaten carriage', form parts ofthe meansfor connecting said platen carriage lto the feeding-lever 22j` 83designates a restoring spring tendingcto retain the lever 22 in theposition shownzby Fig, VI, where it fengagesfa' ,.stationary`s't'opf-.pin 832:- An elongatedtripable abutment finer 84.is pivotally'mounted ona. in 85;( igs. Y, VI. VII and XIV) carrie by the longlever;22` the axis of 'the pivot fbeingiapproximatelv parallel with thehorizontal path .of the platen carriage. This t'ripable finger84extends'into the path'of the :pins 25, so -as to transmit movementfrom said ins Ato the lever 22. As shown most clearly` in Figs. and-VI`86 'desifrnates'a spring'tending to retain the finger 84 in the path ofthe traveling pins 25.` 84 designates a retaining finger parallel withthe fnger'84 and movable into the path of the traveling pins 25 so as tocooperate with the finger 84 in rminet-ting the platen carriage to thelong lever 2L'. 'lhe linger 84' is supported on the pivot 85, and :ispring 86 (Fig. VI) tends to retain the upper end of this finger 84 inthe path of the traveling pins-25. The lingers 84 and 84 move with' thelong lever 22 and they lie between stationary cams 8T and ST. (Figs. VIand XIV) each finger having :in inclined edge adapted to engage.

:i correspondingly inclined face on one of the cams. Through the-mediumof these cams. the pivoted fingers 84 and 84 are shifted laterally topositions beyond the path of the pins 25.

'hen the long lever 22 orcupies its startingr position. the fingers 84and 84 lie in the {.mjsrinns shown by full lines in Figs. VI and XIV and.by dotted lines at the left side of Fig. XIV. A traveling pin 25 canthen pass the finger 84 and engage the finger 84 to transmit motion tothe lever 22. At the beginning of this motion, the finger 84 passes fromcam 87 and its spring 86' then shifts the finger 84 to a position inalinement with the finger 84. The pin 25 then lies between the fingers84 and 84 and movement can be transmitted in either direction from. theplaten carriage to the long lever 22 whereby the master wheel carriageis operated. A'

lVhen the master wheels travelentirely across their accumulators, thefinger 84 is tripped by the cam 87, as shown by dotted line's'at theleft side of Fig. XIV,'thereby permitting thespring 83 to quicklyrestore the lever 22. The pin 25 can then continue in motion with theplaten carriage,-Without driving the lever 22. 'Thereafteig the othertraveling pins 25 will cooperate vvith'A the fingers 84 and 84 in thesame mannerltoac-v tnate and then release the long lever 22 'and themastenivheel carriage driven j-the'reb lVhen t-he platen carriage iseventual y restored, the spring pressed 84'='an'd 84 will occupy thepositions shown byl full lines at the lright side of Fig. XIV,'and thetraveling pins 2 5 will' engage theinclined face of finger'84, so as toshift said finger out of the path of the pins.

' .A'utof/mztz'cally.I .selectingA the' lVhen'one of the travelingpins25 transmits' motion from the platen 'carriageto the long'lcver 22, themaster wheelcarr'ia e is actuated to simultaneously shiftallfo themaster wheels A', B and, C along the rotary shaft 5 to which said wheelsare s lined. lOiie master Wheel cannot be sliifte independently ofthe'others, and all of the 'mas ter wheels are rotated at the same ztimethrough the medium of shaft 5 `which is driven by the numeral keys.However, any one of the arcumulators can be actuated independently ofthe others, and any two or all three of the accumulators can be actuatedat the same time.

Although the three master wheels A.' B and C travel step b): step at theSame time to mesh with their successive denominational wheels 4, it willbe observed that the space between any two adjacent wheels 4 (Fig. IV)is greater than the thickness of a master wheel, and it is possible fora master wheel to idly rotate in the successive. spaces between itsdenominational wheels 4. Therefore, the accumnlators are slidablymounted on horizontal rods 2 parallel with the master wheel shaft 5, andeach accumulator can be shifted a slight distance to the left for thepurpose ot' locating its denominational wheels 4 in active positionswhere they will be actuated by their master wheel. If an acllU cumulatoris permitted to remain in its idle position, shown Fig. IV, its masterwheel will travel step by step. with the other master wheels, but-.themaster wheel aesociatedwith the idle accumulator will rotate idly in theI-Sl spaces between vits denominational wheels 4. The means forselecting the accumulators comprises automatic devices whereby theaccumulators to be operated are shifte l to the lett from the positipllsShown inFig. V, and the selected accumulators are thus positioned foractuation hy their master wheels.

When an accumulator occupies its idle po` Sitten, its housing enseres@Stop-0611er 90 o,n one of the rods 2 an it is held there b means ot a@storing spring'Sl (Figs IlA I and XI) .Each accumulator is alsoprovided with .a .Shifter compri-.sing a 1ever92rv0ted at 93 and adaptedto enga e .an 'abutment uw ai. (Figs. l, 1V and. fui patted fo one sieQta@ ammalata housing. when the abutment lever.- 9.2i fil-euries the'posit-ion Sheva in Figs I. and Xl, it iS held in eingegement :with .aSten pin $5 by means' Qf a spring 96, and if the shiftingl lever 92 isthen Operated. .it will engage the abutment lever 94. to .shift theacvmvlater- Herr-ver, each abutment lever has an extended handle'whiehmay-.be tdepressed by the operator to locate said lever below the pathof .the upper end of the adjacent shifting lever 92. and in thisevent'th shifting lever cannot displace the accumulator .from its idleposition. Consequently, et-h abutment lever .94 Serves 11S a manually:operable key adapted to prevent the selection of its accumulator.

After an abutment lever 94 has been depressed, it is held by theoperator until the adjacent shifting lever 92 has been moved toward theRCCumulator, and it can then be released and permitted to engage thelower edge of the extended upper end of shifting lever 92. IVhen theshifting lever is c ventually restored, it will release the depressedabutment lever 94, and the latter will be restored by its spring 96.

The automatic means for shifting the levers 92 to select theaccumnlators comprises arms 97 pivoted at 9S and adapted to engage rollson the lower ends of the respective shifting levels 92. The means foractuating these arms 97 is shown most clearly by Fig. XVI. Bell cranklevers 99, at thc rear lower poition of the machine, are connected bvmeans of rods 100 to the respective arms 9i', and to cach bell crank 99is connected a rod 101 extending upwardly therefrom and having its upperend connected to a bell crank lever 102. There arc three of the levers102, one for cach accumulator, and each of these levers 102 can beoperated to transmit the shiftingT movement whereby its accumulator isshifted and thus selected for operation by its master wheel. The threelevers 102 are all pivotally supported on a pin 1.03 and provided withoperating extensions a, b and c which lic in different planes below thetoothed bar 24 on the travelirg platen carriage.

Each of the adjustable clips K, K' and K2, traveling with the bar 24, isprovided with one or more dependingr selectors designated by A2, B2 andC2, and shown most clearly in Fig. XVI. Each of these travelingselectors is pivoted to one of the clips (Fig. VI) and provided with anupward extension 104 adapted to engage the -clip to limit the pivotalmotion in 'one direction. The travelingr selector Az is adapted toengage and actuate the operating extension a of the bell crank lever 102associated with accumulator A, so as to shift said accumulator fromits'idle position to its active position. The selector B2 is adapted tolikewise engage and ac'tuate the operatin extension b as sociated with'-accumulator and the selector C2 is adapted to engage and actuate theextension 'c to 'shift the accumulator C. This is suggested by Fig. XVI,wherein the travcling' selectors moving to the left are arranged tofirst select the accumulator A which is operated inde )endently of theother accumulators,4 this selection being accomplished through themedium of selector A2 engaging operating extension a to transmit theshifting motion to accumulator A which lies avt-the tleft, side of themachine. Thereafter, the selectors B2 and C2 carried by clip K', engageand actuate the operating extension b and c to shift the middleaccumulator B and the right hand accumulator C2 both of which are then o'erated independently of accumulator A; an after the opera-tions -inthese two 'accumulators have been completed, the selector Cz engagesoperating extension c to provide for independent operation ofaccumulator C. 'It will be apparent that the selectors can be readilyrearranged or modified to provide for any desired selection of theaccumulators.

In moving to the lett (Figs. VIL Vlll and XVI) the selectors actnate theoperating extensions while the members 104 are engaged with thetraveling clip? tir. limit the pivotal motion of the selectors, but.when the traveling platen carriage is restored by a movement in thcopposite direction, the selectors idly ride over the operatingextensions a, b and c, while the extensions 104 move away from theclips.

After an accumulator has heen selected and shifted. it is loi-lied inits operative position through the medium of a latch member 105 (Figs.VIII and XVI) There are three lat-rh members 05. one for cachaccumulator` and cach latch member is pivotcd to one of the bell cranklevers 102 and provided with a shoulder 106 adapted to engage astationary bar 107 to retain the selected accumulator in its` operativeposition. After the ltlfi operation in the selected accumulator has beencompleted, the latch member is released, as will be present.y described,and the accumulator is then shifted to its idle position by means of itsrestoring spring 91.

The means for unlocking the latch bars 105 (Figs. VI, VII and VIH)comprises a. pin 108 carried by the large oscillatory lever 22 throughwhich motion is transmitted from the platen carriage to' the masterWheel carriage .Upon the completion of a calculating operation, the pin108 .engages a cam face 109 on the bottom o f the selected latch member105, 'so'.asito lift' said latch member and releae. its shoulder 10Gfrom the stationary ba'rj10f, ,therebyzrele'ising the selectedaccumulator and permitting it to return to its idle position-Immediately thereafter, the largelever 2Q is released from its travelingo erating `pin,25 .and-restored to the position shown Figs'. VI and VII.s

.:Undensomevgconditions -the pin 108 may ,iailto release the latchmember, or members 105. ,1F or example, thev calculating operation maycompleted: and the .operatori may restore the .platen carriage beforevthe pin 108 strikes the cam faces VAon the latch member. Or, .if the.carriage operation is very rapid, the latchmember may fallback to itslocking positionafter being releasedv by the )in 108. Therefore, theunlocking means for t e latch members ,preferably includes` an additional unlocking device whichbecomes effective when the long lever 9.2is're'stored to the posi- ,tion shown by Figs. VI and VII. Thi-sadditional device is an arm 110 pivoted at 111 and having an extension112 at its free end arranged to lie under the endsof the latch members105 when the latter occupy their locking positions. This arm 110 isprovided with an operating linger 113 adapted to be engaged by pin 10Swhen long lever 9.2 occupies the starting position shown by Figs. Vl andVII. Consequently, when lever is restored, the pin 108 engages finger113 to elevate the free end of any latch ineinber 105 that occupies itslocking position. The latch members can thus be released from thestationary bar 10i'.

Aulo-matic conf-rol of addlou and snol/'aolion.

l have previously referred lo the gear :35 splined to the reversiblemaster wheel shaft and adapted to mesh with gear wheel 52 for addition.or reversing pinion 53 for subtraction. The shiftable gear 55 is shiftedb v mean.: of lever 5S having a pin 58' e.\'tendinr into an annulargroove in the hub of said gear. This lever 58 can be operated h v hand.and it is also operated automaticallv to provide for the selection ofeither addition or subtraction. After being shifted.- the lever 58 isvieldingly held b v means of a spring actuated detent arm 114 (Figs. 1X

and XU) having t-c-:n notches :zdapetl to receive the lorrc cud ol Saidici-cr.

.ic :ranas for shii'tin 2 c ni: lever l5 (jig 1X :1nd XVI) lotted 1.orecois-e the lower end of lever 58 and connected h v neans of :at the t..,.g es :z rod g l( lercr 11T to an arm 119, the latter being pivotcdat. l2() and provided at its free end with a roll lili adapted to beengaged by pins iZ- l and 123 ea'- tending rearwz-.rdlr from theiravelin'r clips it, it' und Ka rJ'Che traveling pins 122 are positionedto ride over the roll 19.1 so as io depress the arm 119 (Fig. II) andthe pins 123 are positioned to travel under and thereby elevate the arm119 (Fig. Ill). -`diiien said arm is moved upwardly, it actuales theshifter lever 92 to provide for addition, and when aid arin119 isdepressed it moves the shifter lever to the subtract-ing position. Eacho the traveling clips K, K' vand li: carries one of the pins 122 or 123,and each of these pins may be termed a selector-fior the reason that itautomatically selects either addition or subtraction. This selection ismade at about the time the master wheel carriage begins its step bjrstep motion, and at this time the accun'iulator, or accumulators, arealso selected.

It will be understood that the automat-ic g ve r selection of theaccninulatois, as well :is the automatic selection for addition andsubtraction can be lnodilied it; obtain the :no t deirable results fordiferent kinds of worn, the traveling clips being adjustable andremovable, so that they can he readily removed and rearranged orreplaced by clips having the desired selectors thereon. .\n,\ desirednumber ot accnmulalors n he. usen', and any of the acculntzizzors het i.shown can he eliminated from the calculating operations by removingrthe clip with thc .selector for that accumulator.

l claim;

l. In a calculating machine, a plurality of accumulators cach providedwith a series ol' national wheels. each of said selectors being,

associated with one of said accumulators to foo control the of movementthereto.

In a calculating machine, a plurality of arcumulators each provided witha series of toothed denominational wheels and a toothed rotary actuatoradapted to mesh with said wheels and also adapted to occupy-idlepositions between adjacent denominational wheels. cach of the rotaryactuators being movable step by step to mesh with its difierentdenominational wheels and also from one of said idle positions toanother, certain of the teeth of said actuators passino' through thespaces between teeth of said enominational wheels when said actuatorspass from one idle position'to another, a traveling denominationalcarriage whereby the step by step movement is simultaneously imparted toall of said actuators, key-controlled means whereby all of saidactuators are simultaneou'sly rotated to actuate the' denominationalwheels in mesh with an actuator' while the actuator between adjacentdenominational wheels is idly rotated, and selectors ladapted toestablish an operative relationship' between said actuators and theirdenoininational wheels, each of said selectors bein'g associated withone of said accumulator-s to provide for independent operation of theselected accumulator while the actuator of the other accumulator is idlyrotated between denominational wheels. .I i'

3. In a calculating machine, an accumulator provided'with a series of'toothed denominationalwheels arid a toothed rotary actuator movablestep'by step to mesh with the successive denominational wheels, saidactuator being also: adapted to occup'ylsuccess'ive idle' positionsbetween land not in mesh with adjacent denominational wheels, certain ofthe teeth of said actuator passing through the spaces between teeth of`said denominational wheels when Vsaid actuator passes from one idleposition to another, keycontrolled means wherebyfsaid actuator isrotated to drive the accumulator while in mesh with said wheels and torotate independently of the accumulator while in said idle positions,and means whereby said Aaccumulator is shifted from an active positionwherein said actuator' meshes with the denominational wheels to an idleposition permitting independent operation of the actuator between saidwheels.

4. In a calculatingr machine, an accumulator provided with a series oftoothed dcnominational wheels and a toothed rotary ac l tuator movablestep by step to mesh with the successive denominational wheels. saidactuator being also adapted to occupy successive idle positions betweenand not in mesh with adjacent dcnomimltional wheels. certain of theteeth of said actuator passingr through the spaces between teeth of saiddenominational wheels when said actuator is transmission moved from oneidle position to another, key-controlled means whereby said actuator isrotated to drive the accumulator while in mesh with said wheels and -torotate independently' of the accumulator while in said idle positions,and means whereby said accu mulator' is shifted l'rom an active positionwherein said actuator meshes with the dcnominational wheels to an idleposition permitting independent operation of lthe actuator between saidwheels, the last mentioned means includingr a traveling selector and ashifter actuated thereby to shift the accumulator from one of saidpositions to another.

5. In a calculating machine, a plurality of accumulatorseach 'havingwheels and provided with an actuator, a traveling denominationalcarriage movable 'step by step to simultaneously change thedenominational relation of the actuators to their respectiveaccumulators, each of :said accumulator-s being shiftablein a straightline from an idle position where all of "its wheels are offset fro'm itsactuator to an active'ps'itioii wherein one of its wheels is'inalinement with said actuator and may be driven thereby, and travelingselectors whereby -said .accumulators are shifted, each of saidselectors being associated with one of said accumulators to provide forthe shifting and'independent operation of the Selected accumulator.

(3. In a calculating machine, a plurality of aceumulators each provided'with' a series of denominational wheels and a rotary actuator 4adaptedvto mesh' with said wheels, a traveling denominational "carriagemovablel step by steptolsirnultaneously change the denominationalrelation of the actuators to their res ective accumulatols,key-controlled means w iereby said actuators are rotated at the sametime to simultaneously actuate the accumulator-s, each of saidaccuniulators being shiftable in a straight line from an active positionwherein one of its denominational wheels is in alinement with itsactuator and may be driven thereby to an idle position wherein saidactuator is offsetfrom said denominational wheels thus permittingindependent operation of the actuator, and travelingr selectors wherebyeach accumulator is selected and shifted from one ut" said positions tothe other.

7. In a calculating uuu-hine. a plurality of :wcnunilators eael'i wovdedwith a series of t'lcnominational wheels and a rotary actuator adaptedto mesh with said wheels. a traveling denominationz-d carriage movablestep by step to sin'mltaneously change the denominational relation ofthe actuators to their rcspcctivc accumulator-s. l e 'c(mtrolled meanswhereby .said actuators arc rotated at the same time tn simultaneouslyactuate the accinnulators. cach of said accumulators beingr shiftablc ina straight line from an active position wherein one of itsdenominational wheels is in alinement with its actuator and may bedriven thereby to an idle position wherein said actuator is offset fromsaid denominational wheels thus permitting independent operation of theactuator, and trareling selectors whereby each accumulator is selectedand shifted from one of said positions to the. other, each of saidtraveling selectors being associated with one of said accumulators toprovide for independent operation of the selected accumulator while allofsaid actuators are rotated by said key controlled means.

8. In a calculating machine a plurality of accumulators each providedwith a series of denominational wheels, a rotary actuator adapted tomesh with said denominational wheels and also adapted to rotate betweenadjacent denominational wheels, a traveling denominational carriagemovable step by step to simultaneously change the denominationalrelation of the actuators to their respective accumulators,key-controlled means whereby said actuators are rotated at the same timeto-simultaneously actuate the accumulators, each of said accumulatorsbeing shiftable in a straight line from an active position wherein oneof its denominational wheels is in'alinement with its actuator and maybe driven thereby to an idle position wherein the actuator is voffsetfrom all of said denominational-'wheels whereby Asaid actuator may beidly rotated between its denominational wheels, andselectors wherebyeach accumulator is selected and shifted from one of said posit-ions tothe other.

9. In a calculating machine ayplurality of accumulators each providedwith a series of denominational wheels, -a rotary actuator adapted tomesh with said denominational wheels and also adapted to rotate betweenadjacent denominational wheels, a traveling denominational carriagemovable step by step to simultaneously change the denominationalrelation of the. actuators to their respective accumulators,key-controlled means whereby said actuators are rotated at the same timeto simultaneously actuate the accumulators, each of said accumulatorsbeing shiftable in a `traig'ht line from an active position wherein oneof its denominational wheels is in alinement with its actuator and maybe driven thereby to an idle position wherein the actuator is offsetfrom all of said denominational wheels and may thus be idly rotatedbetween said denominational wheels, and selectors whereby eachaccumulator is selected and shifted from one of said positions to theother, each of said selectors being movable step by step in synchronismwith said denominational carriage and provided with a shifter wherebymotion is transmitted to the selected accumulator.

10. The combination of a typewriter hav ing a platen carriage, andcalculating mecha-'- nism comprising two accumulators each provided withan actuator, a traveling denominational carriage movable ste by step tosimultaneously change the enominational relation of both actuators totheir accumulators, operating means whereby the step by step motion istransmitted from said platen carriage to said denominational carriage,one of said accumulators being shiftable in a straight line from anactive position wherein one of its denominational wheels is in alinementwith its actuator to an idle position wherein all of its wheels areoffset from its actuator and may not be driven thereby, and a travelingselector whereby the last mentioned accumulator is shifted from one ofsaid positions to the other.

1l. The combination of a typewriter having a platen carriage, andcalculating mechanism comprising two accumulators each-provided with anactuator, a traveling denominational carriage movable step by step tosimultaneously change the denominational relation of both actuators totheir accumulators, operating means whereby the step by step motion is Atransmitted from said platencarriage to said denominational carriage,one of said accumulators being shiftable in a straight line from anactive position wherein one of its denominational wheelsis in alinementwith its actuator to an idle `position wherein all of its wheels areoil'set from said actuator and may not be driven thereby,A and atraveling selector whereby the last mentioned 'ac cumulator isshifted'from one of said positions to the other, said traveling selectorbeing carried by said platen'carriage and provided with a shift-erthrough which motion is transmitted from the platen carriage to theselected accumulator.

12. The combination of a typewriter having a platen carriage andcalculating mechanism comprising two accumulators each provided with anactuator, a traveling denominational carriage driven by said platencarriage and movable step by' step to simultaneously change tllcdenominational relation of both actuators to their accumulators. each ofsaid accumulators being shiftable in a straight line from an activeposition Where-in one of its denominational wheels is in alinement withits actuator to an idle position wherein all of its denominationalwheels are offset from said actuator and may not be'operated thereby,selectors carried by said platen carriage` independently movableShifters adapted to shift the respective accumulators from one of saidpositions to the other, and means whereby motion is transmitted fromsaid selectors to said shifters` each of said selectors being associatedwith one of the Shifters to provide for automatic selection of theec'umulatois to be operated.

13; In a calculating machine; tctirluv lator provided with a. rotaryactuator and a denominational carriage movable step by step to changethe denominational relation of the actuator to the accumulator,key-controlled means whereby said actuator is rotated to actuate theaccumulator, said accu- -miilator being adapted to occupy an idleposition wherein its wheels are all offset from its actuator thuspermitting operation of said actuator and denominational carriageindependently of the accumulator, and said accumulator being shiftablein a straight line laterallytof the machine from said idle position toan active position wherein-one of its accumulator wheels is in alinementwith said'actuator and may be driven in response'to the movements ofsaid actuator and carriage, a traveling selector whereby saidaccumulator is automatically shifted -from one of said positions to theother, and

retaining means cooperating with said selec torto retain the accumulatorin lts active position. r

14. In a calculating machine, an accumu- -lator having accumulatorwheels and provided with a rotary actuator and a denominational carriagemovable step by step to change the denominational relation of theactuator to the accumulator, key-controlled means' whereby said actuatoris 'rotated to act-nate the accumulator, said accumulator beingadaptedto occupy an idleposition wherein its wheels are otfsetjrom its'actua- Y-tor tlius permitting operation of said actuator and denominationalcarriage independently lof .the accumulator, and said accumulator being-shitable' in a straight line from said idle position to an activeposition wherein one of its wheels is in alinement with its actuator andmay be driven in response to the movements of said actuator andcarriage, a traveling selector whereby said accumulator is automaticallyshifted from one of said positions to the other, a spring tending toretain said accumulator in its idle position. a retaining membercooperatingv with said selector to retain the accumulator in its activeposition. and automatic means for releasing said retaining member uponthe completion of a calculating operation.

15. In a calculating machine, an accumulator having accumulator Wheelsand p rovided with a rotary actuator and a denominational' carriagemovable step by step to change the denominational relation of theactuator to the accumulator, key-controlled means whereby said actuatoris rotated to Actuate the accumulator, said accumulator being ada ted tooccupy an idle position wherein alli of its Wheels are offset from itsactuator thus permitting operation of said actuator and denominationalcarriage independently of the accumulator, and said aecumulator beingshitable in a straight line from said idle position lo an activeposition wherein one of its wheels is in :iiincincnl with its actuatoraxid may be driven in rcsponse to the movement-s of said actuator andcarriage, a traveling selector hei-cbj.' said accumulator isautomatically shifted from one of said positions to the other, :i springtending to retain said accumulator in its idle position, a retainingrmember cooperating with said selector to retain the ac cumulator in itsactive position. and automatic means for releasing said retaining memberupon the completion of a calculating operation, said automatic meansincluding a releasing member movable in synchronism with said selectorand adapted to engage said retaining member.

16. In a calculating machine, a plurality1 of accumulators each havingaccumulator 'Wheels and provided with an actuator, a

traveling denominational carriage movable step by step. tosimultaneously change the denominational relation of the actuators totheir respective accumulators, each of saidaccumulators'beingshiftablein a straight line from an idle positionwherein its wheels are olset from its actuator to an active positionwherein one of its wheels is in aliiiement with its -actuator and may bedriven by said actuator, traveling selectors whereby said accumulatorsare shifted, each of said selectors being associated `with'one of -saidaccumulators to V-provide 'for the shifting and inde- -pendent operationof'the Selected accumulator, and latches cooperating `with 'said selectors to retain the selected accumulator in its active position.

17. In acalculating machine, a plurality of 'accumulators -eacli havingaccumulator wheels and provided ivih an actuator, a travelingdenominational carriage movable Step by Step to simultaneoueljt1 changethe denominational relation of the actuators to 'their respectiveaccumulatois, each of said accumulators being shiftable in a straightline from an idle position wherein all of its wheels are otset from itsactuator to an active position wherein one of its wheels is in alinementwith its actuator and may be driven by said actuator, travelingselectors whereby said accumulators are shifted, each of said selectorsbeing associated with one of said accumulators to provide fortheshifting and independent operation of the selected accumulator, latchescooperating with said selectors to retain the selected accumulators intheir active positions, automatic means for releasing said latches uponthe completion of each calculating operation, and springs tending toretain the accumulators in their idle positions.

In testimony that I claim the foregoing I hereunto atliit my signature.

EDWARD C. SCHINKE.

